Message 365597 - Python tracker (original) (raw)

Now consistently - stalled.

aixtools@x064:[/home/aixtools/py39-3.9]git diff diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py index eaada1b504..89c4ebc2bd 100644 --- a/Lib/test/test_builtin.py +++ b/Lib/test/test_builtin.py @@ -1849,26 +1849,40 @@ class PtyTests(unittest.TestCase):

     if pid == 0:
         # Child

```
       pid = os.getpid() # get my PID
```
```
       tty = open("/dev/pts/3", "a")
```

       tty.write("\nI am child - this is my PID:{}".format(pid))

       tty.close()
       try:
           # Make sure we don't get stuck if there's a problem

```
           signal.alarm(2)
```

           # signal.alarm(2)
           os.close(r)
           with open(w, "w") as wpipe:
               child(wpipe)
       except:
           traceback.print_exc()
       finally:

           tty = open("/dev/pts/3", "a")

           tty.write("\nI am child - exiting PID:{}".format(pid))

           tty.close()
           # We don't want to return to unittest...
           os._exit(0)

   # Parent
   os.close(w)

```
   tty = open("/dev/pts/3", "a")
```

   tty.write("\nI am parent:{} with child:{}".format(os.getpid(), pid))

   tty.write("fd:{} input:{}".format(fd, terminal_input))

   tty.close()
   os.write(fd, terminal_input)

   # Get results from the pipe
   with open(r, "r") as rpipe:
       lines = []
       while True:

           tty = open("/dev/pts/3", "a")

           tty.write("\nI am parent:{} with lines:{}".format(os.getpid(), lines))

           tty.close()
           line = rpipe.readline().strip()
           if line == "":
               # The other end was closed => the child exited

@@ -1895,6 +1909,9 @@ class PtyTests(unittest.TestCase):

     # Wait until the child process completes before closing the PTY to
     # prevent sending SIGHUP to the child process.

```
   tty = open("/dev/pts/3", "a")
```

   tty.write("\nI am parent:{} starting wait_process({}, exitcode=0)".format(os.getpid(), pid))

   tty.close()
   support.wait_process(pid, exitcode=0)

   # Close the PTY

======== Debug ======== aixtools@x064:[/home/aixtools/py39-3.9]./python -m test test_builtin 0:00:00 Run tests sequentially 0:00:00 [1/1] test_builtin

I am child - this is my PID:22544440 I am parent:21954660 with child:22544440fd:6 input:b'quux\r' I am parent:21954660 with lines:[] I am child - exiting PID:22544440 I am parent:21954660 with lines:['stdin.isatty(): True'] I am parent:21954660 with lines:['stdin.isatty(): True', "captured: 'prompt'"] I am parent:21954660 starting wait_process(22544440, exitcode=0)